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Vector Psychometric Group
Добавлен 10 май 2021
Vector Psychometric Group (VPG) is proud to offer cutting-edge software for web-based data collection and item response data analysis. Authored by Li Cai, one of the leading experts in psychometrics, Adaptest®, IRTPRO™, and flexMIRT® have state-of-the-art features unavailable in other programs. This channel will provide educational training on their software and include software from VPG's subsidiary, Scientific Software International (SSI) - HLM, LISREL, AUXAL, SuperMix, BILOG-MG and PARSCALE.
Introducing HLMix
HLMix™ is a cloud-based program for analyzing 2- or 3-level hierarchically structured data with a wide range of outcome variable distributions and link functions. The program features a point-and-click interface compatible with any common web browser. Output is provided in both HTML and text format. In addition to standard output expected from multilevel analysis software, HLMix™ produces simple slopes and confidence regions for three moderation model types.
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Over by LiQWYD | www.liqwydmusic.com
Music promoted by www.free-stock-music.com
Creative Commons / Attribution 3.0 Unported License (CC BY 3.0)
creativecommons.org/licenses/by/3.0/deed.en_US
Просмотров: 298
Видео
LISREL - New Statistical Methods
Просмотров 5762 года назад
Learn more about the new features and statistical methods available in LISREL. Visit ssilive.com/ or ssicentral.com/index.php/products/lisrel/ for more details. Users with active SSI Live™ LISREL subscription licenses can obtain this update free of charge by logging into their account. Two-stage multiple imputation Structural Equation Modeling for continuous, ordinal, and a mixture of continuou...
General Item Response Theory (IRT) Modeling Framework
Просмотров 3393 года назад
General Item Response Theory (IRT) Modeling Framework
Hierarchical Linear Models (aka Multilevel Modeling): The Basics
Просмотров 14 тыс.3 года назад
In this video, we walk through the basics of hierarchical linear modeling (HLM) - also known a multilevel, random effects, and mixed effect modeling. The topics include nested data structures, HLM benefits, and the random effects ANOVA model. An empirical demonstration of HLM is undertaken in the software program HLM 8.2. MDM file used for software demonstration can be accessed here - ssicentra...
Inference for Variance Components in Hierarchical Linear Models
Просмотров 4163 года назад
Recording of August 2021 Webinar, ® Stephen Raudenbush, EdD Variance components are of high interest in hierarchical linear models. We’d like to know, for example, how variable treatment effects are in a multi-site trial; how much children vary in their rates of learning; or how variable are effect sizes in a met-analysis. Moreover, inferences about other parameters (fixed and random regression...
Fixed Effects, Random Coefficients, and Centering
Просмотров 9053 года назад
Recording of April 2021 Webinar, ® Stephen Raudenbush, EdD Suppose we have a two-level setting (e.g., students nested within schools or patients within hospitals) and we wish to assess the impact of a level-1 intervention on a level-1 outcome. The Head Start Impact Study and the “Tennessee STAR” class size experiments are prominent examples. Economists have recommended including fixed effects (...
Is there such an HLM analysis as level 4? How would you define the equations for these four levels?